The Dremel Max accessory family, developed by our engineers, offers maximum lifespan and lasting performance. The high-performance Dremel Max 9901DM milling cutter made of tungsten carbide is coated with titanium nitride, allowing it to last twice as long as uncoated standard accessories. What can you do with it? The extremely stable cutter is made of hardened steel and coated with titanium nitride, making it suitable for all demanding functional or DIY projects that require high precision. The 3.2 mm accessory can be used for more aggressive shaping, smoothing, or grinding of hard materials such as metals, hardened steel, fired ceramics, cast iron, plastic, and hardwood. The milling cutter is ideal for projects such as engraving on metal or glass, carving stone, or removing burrs from cast parts. The cylindrical shape of the milling cutter allows for deep material removal, cutting smooth surfaces, rounding edges, as well as bevel and V-cuts. The tip of the accessory is suitable for flat-bottomed slots and grooves, flat-side cuts, and V-cuts when the tool is held at a 45-degree angle. How does it work? Let the accessory and your Dremel multifunction tool do the work by not applying excessive force or pressure. To achieve a good result, use the sides of the accessory head at an angle of less than 90 degrees. Do you feel that the accessory is rattling more than it is removing material? Increase the speed for a cleaner result. First, check the symbol or video to see the result, or test with a scrap piece before starting your DIY project. Do not use the 9901DM for drilling or enlarging holes that are less than half the diameter of the accessory.